diff --git a/static/fontawesome b/static/fontawesome
index bc71d51..92d1012 120000
--- a/static/fontawesome
+++ b/static/fontawesome
@@ -1 +1 @@
-libs/fontawesome-free-5.5.0-web/
\ No newline at end of file
+libs/fontawesome-free-5.6.1-web/
\ No newline at end of file
diff --git a/static/js/topic.js b/static/js/topic.js
index 126e802..4a5a51e 100644
--- a/static/js/topic.js
+++ b/static/js/topic.js
@@ -41,8 +41,6 @@ function updateQuestion(response) {
 
 
 function new_question(type, question, tries, progress) {
-    console.log("new_question " + type);
-
     $("#question_div").html(question);
     $("#comments").html("");
     $("#solution").html("");
@@ -62,27 +60,40 @@ function new_question(type, question, tries, progress) {
     $('#question_div').animateCSS('bounceInDown');
 
     // enable shift+enter to submit
-    // $("input:text, input:radio, input:checkbox").keydown(function (e) {
-    //     if (e.keyCode == 13) {
-    //         e.preventDefault();
-    //         if (e.shiftKey) postQuestion();
-    //         return false;
-    //     }});
+    $("input:text, input:radio, input:checkbox").keydown(function (e) {
+        if (e.keyCode == 13) {
+            e.preventDefault();
+            if (e.shiftKey) postQuestion();
+            return false;
+        }});
 }
 
+// ===========================================================================
+// Send answer and receive a response with the result of the correction.
+// The response can be right, try_again or wrong.
+// A new question is not loaded. To load questions a GET is required.
+function postAnswer() {
+    if (typeof editor === 'object')
+        editor.save();
 
-function getFeedback(response) {
-    console.log('updateQuestion '+response["method"]);
+    $.ajax({
+        type: "POST",
+        url: "/question",
+        data: $("#question_form").serialize(), // {'a':10,'b':20},
+        dataType: "json", // expected from server
+        success: getFeedback,
+        error: function() {alert("O servidor não responde.");}
+    });
+}
 
+function getFeedback(response) {
     var method = response["method"];
     var params = response["params"];
 
     switch (method) {
     case "right":
-        console.log(params['comments']);
         $('#comments').html(params['comments']);
-
-        // MathJax.Hub.Queue(["Typeset", MathJax.Hub, "#comments"]);
+        MathJax.Hub.Queue(["Typeset", MathJax.Hub, "#comments"]);
         $("#submit").html("Continuar");
         $("#submit").off();
         $("#submit").click(getQuestion);
@@ -112,25 +123,6 @@ function getFeedback(response) {
     }
 }
 
-// Send answer and receive a response.
-// The response can be a new_question or a shake if the answer is wrong, which
-// is then passed to updateQuestion()
-function postAnswer() {
-    console.log("postAnswer");
-
-    if (typeof editor === 'object')
-        editor.save();
-
-    $.ajax({
-        type: "POST",
-        url: "/question",
-        data: $("#question_form").serialize(), // {'a':10,'b':20},
-        dataType: "json", // expected from server
-        success: getFeedback,
-        error: function() {alert("O servidor não responde.");}
-    });
-}
-
 
 $(document).ready(function() {
     getQuestion();
diff --git a/templates/comments.html b/templates/comments.html
index 75c0984..c8279bf 100644
--- a/templates/comments.html
+++ b/templates/comments.html
@@ -1,7 +1,7 @@
 {% autoescape %}
 
 {% if comments %}
-<div class="alert alert-warning">
+<div class="alert alert-danger">
     {{ md(comments) }}
 </div>
 {% end %}
diff --git a/templates/solution.html b/templates/solution.html
index f293ed0..0704732 100644
--- a/templates/solution.html
+++ b/templates/solution.html
@@ -1,7 +1,7 @@
 {% autoescape %}
 
 {% if solution %}
-<div class="alert alert-danger">
+<div class="alert alert-secondary">
     <h4 class="alert-heading">Solução</h4>
     {{ md(solution) }}
 </div>
diff --git a/tools.py b/tools.py
index dc4c161..abdec28 100644
--- a/tools.py
+++ b/tools.py
@@ -102,17 +102,6 @@ class HighlightRenderer(mistune.Renderer):
     def image(self, src, title, alt):
         alt = mistune.escape(alt, quote=True)
         title = mistune.escape(title or '', quote=True)
-        # if title:
-        #     caption = f'<figcaption class="figure-caption">{title}</figcaption>'
-        # else:
-        #     caption = ''
-
-        # return f'''
-        #     <figure class="figure">
-        #     <img src="/file/{src}" class="figure-img img-fluid rounded" alt="{alt}" title="{title}">
-        #     {caption}
-        #     </figure>
-        #     '''
         return f'<img src="/file/{src}" class="img-fluid mx-auto d-block" alt="{alt}" title="{title}">'
 
     # Pass math through unaltered - mathjax does the rendering in the browser
--
libgit2 0.21.2